12" X30" Heavy Gauge Steel Floor Grille Excellent heavy duty steel construction floor grill (no damper) Made to take foot traffic and hold up to 300 lbs. with over 75% free air flow Color is brown with a reddish hue (like a cinnamon stick color) Fits duct opening of 12 x 30 with a faceplate of 13 13/16 x 31 13/16 Flange of faceplate is ~ 3/16 thick and drop in portion is ~  thick